IS THERE SOMETHING THEY ARENT TELLING US ABOUT YELLOWSTONE?

Just took a look at the Parker Peak sizemo readings in Yellowstone National Park..now i used to watch this site like a hawk for years and i dont remember Parker Peak ever looking like this, this looks like activity to me.

[link to quake.utah.edu]

I haven't heard a word about any problems at Yellowstone this winter, but this sizemo does not look good..it could just be the sizemo acting up but i dont know..it seems to show some earthquakes in there also...